Improvement in machines for boring seats of buggies



UNITED STATES PATENT OFFICE.

GEORGE XV. LEMLEY, OF PAVILION, NEY YORK.

IMPROVEMENT IN MACHINES FDR BORING SEATS 0F BUGGIES.

Specification forming part of Letters Patent No. 35,099, dated April 29, 1862.

To /LZZ U'zfomf 71mg/ concern:

Be it known that I, GEORGE W. LEMLEY, ot' Pavilioinin the countyv of Genesee and State of New York, have invented a new and use ful niaehine for boring the corner-lioles in the seats of buggies, &c., at any desired angle, and for giving all the bevels requisite to la)Y out and lit the posts to the varying angles ot' the said corner-holes; and I do hereby declare that the followi ng is a description thereoi." in terms which l now think sullhiently t'ull, clear, an'd exact, reference being had to the annexed drawings, making a part ol" this specitication, in which- Figure] isaperspectiveview; Fig. Label'- tom or under side View, and .l `ig. f3 a representation of the work perlormeil by my machine.

The nature ol my invention consists in the production of a machine by means of which the corner-holes in the seats of buggics and like articles may be bored at airyv desired angle or pitch and the posts laid out or made with the properbevels,not only on theirerosssections, but also at the shoulders of the tenon at both ends of the posts.

My object .is to suppl 'v a want long t'elt by carriage-makers in. the absence oli' any taganized machine by which these important ends could be attained with :uacuracgT and facility.

'lo enable others skilled in the art to make and use my invention, l will proceed to describe its construction and operation.

I infopare a block or bed-piece, A, of the general form represented in the drawings,V and bore through it a hole ot' the size ot' the hole to be bored in the corner of the seat at an angle ot' about. torty-iive degrees, which hole is lined with the metallic tube B. Attached to the under side of the said block or bed-piece by means of the set-screws o (t is the eornerer M, which lis adjusted to its proper position'by means oli' the thumb-screws I I and slots l) l). The clamps L L extend down under the block or bed-piece and the corner ot the seat and eontine the two together, these clamps being provided with thumb-screws K K for this purpose. 'lhe block A and. the seat mayv lie parallel it the hole to be bored is ol' the same angle as the boringI hole or tube l; but if it is to be of' a greater angle then the block A and seat must be disposed at an angle with respect to each other greater' or less, according to the angle of the hole to be bored. For this purpose the block A is provided with thumb-screws II ll', which bear upon the upper surface ot' the seat and press the block A and seat apart at the t'ront edge ot' the said block A, the corner ol the seat still resting on the un der surface of the block A and against the cornerer M.

Upon the upper surface of the block A are arranged the standards C C the feet ot' which are provided with adjusting mortises or slots c t' and seltscrews d d. livoted to the upper ends ol" the standards are the gages E l), which are pivoted to each other` at the point g. The gage lIt" is permanently attached to the guide S and at right angles therewith, while the gage l) terminates at the pointh.

The feet l l) of the guide S always rest upon thue sills olf the seat, no mattei' what .the angle ol. the holes to be bored ma)v be, and it' the seat and bloekA be parallel, so also will be the upper edges ot the gages D E; but in the same degree, that the scat and block A depart trom this parallelism so do also the upper ed ges of these gages, owing' to the fact that the)` have no common center ot' motion. lnclined planes l? F and G G are formed on the lront edge of the block A, the one heilig' the reverse ol the other, as represented.

The manner in which this machine is to be used is as follows: The corner of the seat is confined to the under side of the block A by means of the clamps L L, the adjustable cornerer )l determining the exact position of the corner-hole, and the thumb-screws H ll the angle of the said hole. The guide S is then brought down, so that its feet P P shall rest on the sills of' the seat, in which position itis secured, so that the seat may be renuiwed and replaced, it' necessary, before the work is completed, bymeans of the thumbscrew J. The hole is then bored through the tube l, after which the operator places the stock otl his bevel on the upper edge of the gage E and adjust-s the blade thereof to the inclined plane (1l GI This is followed by a similar application of the bevel to the gage D and inclined plane F F. operations with the bevel determines the bevel of: the post for that particular hole in.

The iirst of these its cross-section, as represented at m m, Fig. 3; the second, the bevel of the shoulders of the tenons at the top and bottom of the posts, as seen at n in the same figure.

lt will be observed t-hat the standards C and C do not occupy like positions on the block A, or, in other Words, that the standard C is farther t rom the inclined plane F F than the standard C is from the inclined plane G G. The reason of this Will now be explained. By raising the front edge of the block A, or by separating at that point the seat from the block A by means of the thumb-screws Il H, the machine is being' altered so that it will set the post at a greater angle. The bevels of the posts must necessarily be changed to correspond, both to get their shape and the miters at'the ends ot the posts 5 hence the gages D E are so arranged that when block A lies fiat on the sills of the seat and are used to lit a post in that position their upper edges lie parallel With each other, giving, as before stated, the correct bevels to lit the post to the hole bored in that position; b ut as soon as block A israised, or the said block and the seat are separated at the front edge of the block A by means of thumb-screws ll H, there are then three different angles-one at tube l5, another at F F, and a third at G G, which do not alter correspondingly. The angle at F F gains upon the angle at tube B. The angle G G also gains upon that at tube l5, but not so much; hence it is that standard C must be set ata point Where it will drop enough in raising1 the forward edge of block A from the seat to lose Whatthe angle at the point F F gains upon the angle atpoint B. There is but one point Where the standards C C' can be placed on block A to give the bevels required to a post at any angle, and that depends upon the angle of tube B, and also upon the point that the rivet g holds in the gages D E-that is, to get the bevel given on gage D and inclined planes F F standard C and gage E are represented like standard C and gage D, differing only in that gage E acts independently of the pi vot g passing through it.

rlhus it will be seen that if the pivot g were moved a little either Way from Where it now is the standard C would necessarily be red quired to be moved to a different point. This could be done and the machine Wouldwork correctly; but the standards C and C cannot be confined to any one point, as this depends entirely upon the angle .of the tube B as regards gage E. As respects the gage D the position of its standard C depends partly upon the pitch or angle of tube B and partly n pon the point at which the pivot g is inserted.

Having thus described my machine and the manner in Which it operates, What I claim as new, and desire to secure by Letters Patent, 1s-

l. A machine for boring the corner-holes in buggy-seats and articles of a like nature, consisting of a combination of proper means for regulating and determining the point Where and the angle at Which the said holes are to be bored, substantially as described.

2. A machine which possesses the capacity of regulating and determining the place and angle ot' the corner -holes, as Well as proper means for determining the bevel of the posts in their cross-section for that angle,lsubstan tially set forth.

A machine which possesses the capacity of regulating and determining the place and angle of the corner-holes, as well as proper means for determining the bevel or miter ot' the shoulders of the tenons on the posts for that angle, as described.

4. A machine comprising proper means for laying out or determining all the bevels of the posts of carriageseats, dmc., to lit them to any desired angle of corner or post holes, as set forth.

5. A machine consisting' of a combination of proper means to bore the corner or post holes of a carriage-seat, zc., at any desired angle, and to determine or indicate the bevel lof the posts in their cross-section, and the bevel or miter of the shoulders of the tenons thereon for that particular angle of corner or post hole, as specied. y

GEORGE XV. LEMLEY. lVitnesses:

H. A. SMEAD, EDM. F. BROWN. 

